diff --git a/README.md b/README.md
index 8a37a0dc..cbdb088f 100644
--- a/README.md
+++ b/README.md
@@ -59,8 +59,8 @@ When used locally, this feature requires that reveal.js [runs from a local web s
 ```html
 <section data-markdown="example.md"  
          data-separator="^\n\n\n"  
-         data-vertical="^\n\n"  
-         data-notes="^Note:"  
+         data-separator-vertical="^\n\n"  
+         data-separator-notes="^Note:"  
          data-charset="iso-8859-15">
 </section>
 ```
@@ -621,7 +621,7 @@ When used locally, this feature requires that reveal.js [runs from a local web s
 If you're using the external Markdown plugin, you can add notes with the help of a special delimiter:
 
 ```html
-<section data-markdown="example.md" data-separator="^\n\n\n" data-vertical="^\n\n" data-notes="^Note:"></section>
+<section data-markdown="example.md" data-separator="^\n\n\n" data-separator-vertical="^\n\n" data-separator-notes="^Note:"></section>
 
 # Title
 ## Sub-title
diff --git a/plugin/markdown/example.html b/plugin/markdown/example.html
index 909639fd..364e866f 100644
--- a/plugin/markdown/example.html
+++ b/plugin/markdown/example.html
@@ -19,7 +19,7 @@
 			<div class="slides">
 
                 <!-- Use external markdown resource, separate slides by three newlines; vertical slides by two newlines -->
-                <section data-markdown="example.md" data-separator="^\n\n\n" data-vertical="^\n\n"></section>
+                <section data-markdown="example.md" data-separator="^\n\n\n" data-separator-vertical="^\n\n"></section>
 
                 <!-- Slides are separated by three dashes (quick 'n dirty regular expression) -->
                 <section data-markdown data-separator="---">
@@ -36,7 +36,7 @@
                 </section>
 
                 <!-- Slides are separated by newline + three dashes + newline, vertical slides identical but two dashes -->
-                <section data-markdown data-separator="^\n---\n$" data-vertical="^\n--\n$">
+                <section data-markdown data-separator="^\n---\n$" data-separator-vertical="^\n--\n$">
                     <script type="text/template">
                         ## Demo 2
                         Slide 1.1
diff --git a/plugin/markdown/markdown.js b/plugin/markdown/markdown.js
index 19aea287..9b0dae9c 100755
--- a/plugin/markdown/markdown.js
+++ b/plugin/markdown/markdown.js
@@ -223,8 +223,8 @@
 
 							section.outerHTML = slidify( xhr.responseText, {
 								separator: section.getAttribute( 'data-separator' ),
-								verticalSeparator: section.getAttribute( 'data-vertical' ),
-								notesSeparator: section.getAttribute( 'data-notes' ),
+								verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
+								notesSeparator: section.getAttribute( 'data-separator-notes' ),
 								attributes: getForwardedAttributes( section )
 							});
 
@@ -251,12 +251,12 @@
 				}
 
 			}
-			else if( section.getAttribute( 'data-separator' ) || section.getAttribute( 'data-vertical' ) || section.getAttribute( 'data-notes' ) ) {
+			else if( section.getAttribute( 'data-separator' ) || section.getAttribute( 'data-separator-vertical' ) || section.getAttribute( 'data-separator-notes' ) ) {
 
 				section.outerHTML = slidify( getMarkdownFromSlide( section ), {
 					separator: section.getAttribute( 'data-separator' ),
-					verticalSeparator: section.getAttribute( 'data-vertical' ),
-					notesSeparator: section.getAttribute( 'data-notes' ),
+					verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
+					notesSeparator: section.getAttribute( 'data-separator-notes' ),
 					attributes: getForwardedAttributes( section )
 				});
 
diff --git a/test/test-markdown-element-attributes.html b/test/test-markdown-element-attributes.html
index b638082b..27b888c1 100644
--- a/test/test-markdown-element-attributes.html
+++ b/test/test-markdown-element-attributes.html
@@ -19,10 +19,10 @@
 
 			<div class="slides">
 
-				<!-- <section data-markdown="example.md" data-separator="^\n\n\n" data-vertical="^\n\n"></section> -->
+				<!-- <section data-markdown="example.md" data-separator="^\n\n\n" data-separator-vertical="^\n\n"></section> -->
 
 				<!-- Slides are separated by newline + three dashes + newline, vertical slides identical but two dashes -->
-				<section data-markdown data-separator="^\n---\n$" data-vertical="^\n--\n$" data-element-attributes="{_\s*?([^}]+?)}">>
+				<section data-markdown data-separator="^\n---\n$" data-separator-vertical="^\n--\n$" data-element-attributes="{_\s*?([^}]+?)}">>
 					<script type="text/template">
 						## Slide 1.1
 						<!-- {_class="fragment fade-out" data-fragment-index="1"} -->
@@ -75,8 +75,8 @@
 
 
 				<section 	data-markdown data-separator="^\n\n\n"
-									data-vertical="^\n\n"
-									data-notes="^Note:"
+									data-separator-vertical="^\n\n"
+									data-separator-notes="^Note:"
 									data-charset="utf-8">
 					<script type="text/template">
 						# Test attributes in Markdown with default separator
diff --git a/test/test-markdown-slide-attributes.html b/test/test-markdown-slide-attributes.html
index 3b917847..bd7b28f1 100644
--- a/test/test-markdown-slide-attributes.html
+++ b/test/test-markdown-slide-attributes.html
@@ -19,12 +19,12 @@
 
 			<div class="slides">
 
-				<!-- <section data-markdown="example.md" data-separator="^\n\n\n" data-vertical="^\n\n"></section> -->
+				<!-- <section data-markdown="example.md" data-separator="^\n\n\n" data-separator-vertical="^\n\n"></section> -->
 
 				<!-- Slides are separated by three lines, vertical slides by two lines, attributes are one any line starting with (spaces and) two dashes -->
 				<section 	data-markdown data-separator="^\n\n\n"
-									data-vertical="^\n\n"
-									data-notes="^Note:"
+									data-separator-vertical="^\n\n"
+									data-separator-notes="^Note:"
 									data-attributes="--\s(.*?)$"
 									data-charset="utf-8">
 					<script type="text/template">
@@ -56,8 +56,8 @@
 				</section>
 
 				<section 	data-markdown data-separator="^\n\n\n"
-									data-vertical="^\n\n"
-									data-notes="^Note:"
+									data-separator-vertical="^\n\n"
+									data-separator-notes="^Note:"
 									data-charset="utf-8">
 					<script type="text/template">
 						# Test attributes in Markdown with default separator
diff --git a/test/test-markdown.html b/test/test-markdown.html
index c89af30d..901b2dea 100644
--- a/test/test-markdown.html
+++ b/test/test-markdown.html
@@ -19,10 +19,10 @@
 
 			<div class="slides">
 
-				<!-- <section data-markdown="example.md" data-separator="^\n\n\n" data-vertical="^\n\n"></section> -->
+				<!-- <section data-markdown="example.md" data-separator="^\n\n\n" data-separator-vertical="^\n\n"></section> -->
 
 				<!-- Slides are separated by newline + three dashes + newline, vertical slides identical but two dashes -->
-				<section data-markdown data-separator="^\n---\n$" data-vertical="^\n--\n$">
+				<section data-markdown data-separator="^\n---\n$" data-separator-vertical="^\n--\n$">
 					<script type="text/template">
 						## Slide 1.1